oil light flickering at high rpm

Yeah I just continued to run what the previous owner was running. I have an old mechanical gauge around here somewhere that I never used. I'll try a thinner oil with a mechanical gauge and see what happens.

Other thing I forgot to mention is the builder used a fabricated Kevko oil pan. I doubt he built an engine and didn't use the correct pickup but now I'm wondering. I'm not sure what oil pump he used though.